# The 'rake/clean' file defines two file lists (CLEAN and CLOBBER) and
# two rake tasks (:clean and :clobber).
#
# [:clean] Clean up the project by deleting scratch files and backup
# files. Add files to the CLEAN file list to have the :clean
# target handle them.
#
# [:clobber] Clobber all generated and non-source files in a project.
# The task depends on :clean, so all the clean files will
# be deleted as well as files in the CLOBBER file list.
# The intent of this task is to return a project to its
# pristine, just unpacked state.
require 'rake'
# :stopdoc:
module Rake
module Cleaner
extend FileUtils
module_function
def cleanup_files(file_names)
file_names.each do |file_name|
cleanup(file_name)
end
end
def cleanup(file_name, opts={})
begin
rm_r file_name, opts
rescue StandardError => ex
puts "Failed to remove #{file_name}: #{ex}" unless file_already_gone?(file_name)
end
end
def file_already_gone?(file_name)
return false if File.exist?(file_name)
path = file_name
prev = nil
while path = File.dirname(path)
return false if cant_be_deleted?(path)
break if [prev, "."].include?(path)
prev = path
end
true
end
private_class_method :file_already_gone?
def cant_be_deleted?(path_name)
File.exist?(path_name) &&
(!File.readable?(path_name) || !File.executable?(path_name))
end
private_class_method :cant_be_deleted?
end
end
CLEAN = ::Rake::FileList["**/*~", "**/*.bak", "**/core"]
CLEAN.clear_exclude.exclude { |fn|
fn.pathmap("%f").downcase == 'core' && File.directory?(fn)
}
desc "Remove any temporary products."
task :clean do
Rake::Cleaner.cleanup_files(CLEAN)
end
CLOBBER = ::Rake::FileList.new
desc "Remove any generated file."
task :clobber => [:clean] do
Rake::Cleaner.cleanup_files(CLOBBER)
end
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